4-CL-PVP Crystals

Buy 4-Cl-PVP Crystals Online

Buy 4-Cl-PVP crystals are 4-chloro-α-pyrrolidinovalerophenone. The copy below is for a laboratory product page. It does not include dosing or human-use claims. It is the para-chloro analogue of α-PVP, which is Schedule I in the United States. Crystal form does not by itself say free base or hydrochloride.

Introduction

4-Cl-PVP crystals are 1-(4-chlorophenyl)-2-(pyrrolidin-1-yl)pentan-1-one. It is a cathinone of the pyrovalerone series. A chlorine sits at the para position of the phenyl ring, the side chain is a pentanone, and the amine is a pyrrolidine. It is the 4-chloro analogue of α-PVP. It is not 4-Cl-α-PHP, which has a hexanone chain, and it is not 3-Cl-PVP.

It is sold as a forensic reference and is not an approved medicine. The free base weighs 265.78 g·mol−¹. The hydrochloride weighs about 302.2 g·mol−¹, CAS 5537-17-7. A crystal lot must state which form it is. The alpha carbon is a stereocenter, so racemate versus a named enantiomer should also be stated.

Key features and benefits – Buy 4-Cl-PVP Crystals

• Chlorinated pentanone cathinone. The para-chloro group is the structural difference from α-PVP and is visible by mass spectrometry.
• Documented salt identity. Hydrochloride CAS 5537-17-7, formula C15H20ClNO·HCl, molar mass 302.2 g·mol−¹.
• Chlorine marker. Mass spectra should show an M / M+2 pair from the ring chlorine, plus a second chlorine if the lot is the hydrochloride.
• Weighable solid. Suitable for forensic reference standards when the COA confirms form.
• Laboratory-only handling. Intended for licensed forensic and in vitro work, not for formulation or human administration.

Specifications Of Buy 4-Cl-PVP Crystals

Applications in research

Appropriate uses are non-clinical, licensed where required, and institutionally approved:

• Analytical reference for HPLC, LC-MS, and NMR identification of 4-Cl-PVP.
• Forensic differentiation from α-PVP, 3-Cl-PVP, and 4-Cl-α-PHP.
• Comparison of free-base and hydrochloride crystals.
• In vitro transporter assays where the protocol covers this compound.

Do not describe or imply oral use, insufflation, or any other human route.

Purity and testing

A defensible product claim rests on the batch certificate.

• HPLC for chromatographic purity, with retention that separates the pentanone from the hexanone and the 4-chloro isomer from the 3-chloro isomer.
• 1H NMR for the para-chloro aromatic pattern, the pyrrolidine, and the propyl side chain.
• Mass spectrometry for the free-base molecular ion consistent with C15H20ClNO, including the chlorine isotope pair.
• Explicit statement of free base or hydrochloride.
• Statement of racemate versus enantiomer.
• Residual solvent if the supplier states it.

Store the COA with the lot number. Do not use an α-PVP CAS number for this lot.

Disclaimer

For laboratory research use only. Not for human or veterinary consumption, not for diagnostic or therapeutic use, and not a food, drug, or cosmetic. α-PVP is a Schedule I controlled substance in the United States, and analogue rules may apply to 4-Cl-PVP. Other jurisdictions may control it as a cathinone. Buyers are responsible for confirming legality, licensing, import rules, and institutional approval before ordering or handling. Unauthorized possession can be a criminal offense. Handle with standard laboratory PPE and dispose of waste under local hazardous-chemical rules. No statement on this page is a claim of safety, efficacy, or fitness for any human application.

Frequently asked questions

What is 4-Cl-PVP?
It is 1-(4-chlorophenyl)-2-(pyrrolidin-1-yl)pentan-1-one. The free base is C15H20ClNO, 265.78 g·mol−¹.

Is the crystal the free base?
Not unless the COA says so. The hydrochloride is CAS 5537-17-7 and weighs about 302.2 g·mol−¹. Crystal habit does not identify the salt.

Is this the same as α-PVP?
No. α-PVP has no ring chlorine. 4-Cl-α-PHP has a longer alkyl chain. 4-Cl-PVP is the para-chloro pentanone.

Which CAS number applies?
CAS 5537-17-7 for the hydrochloride. Use a free-base number only if the COA assigns it. The (R) enantiomer has been listed as CAS 2304915-34-0.

What purity is supplied?
Only the figure on the lot COA. The method should separate chain length and chlorine position.

How should it be stored?
Sealed, cool, dry, and protected from light and moisture. Record the lot number with the COA.

Can it be used in humans?
No. It is not an approved medicine and is not sold for consumption. Check local law before purchase.

What analytical methods confirm identity?
HPLC with isomer resolution, NMR for the para-chloro aromatic pattern, and mass spectrometry consistent with C15H20ClNO, including the chlorine isotope pair. The COA should state free base or salt.